{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:00.340920", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2014-Mar-24_to_2014-Mar-26_140.5_39.5"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2014030002295}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "March 24 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 26 2014"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 53396.93505316219}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["Japan"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Asia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": ["Japan Sea", "North Pacific Ocean"]}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 39.5}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 140.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "140.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 137.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 141.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 36.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 40.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-03-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[137.25, 38.0], [137.47, 38.53], [138.0, 38.75], [138.3, 38.63], [138.47, 39.03], [139.0, 39.25], [139.25, 39.15], [139.32, 39.18], [139.35, 39.25], [139.25, 39.5], [139.47, 40.03], [139.82, 40.18], [139.97, 40.53], [140.5, 40.75], [141.03, 40.53], [141.18, 40.18], [141.53, 40.03], [141.68, 39.68], [142.03, 39.53], [142.25, 39.0], [142.03, 38.47], [141.5, 38.25], [142.03, 38.03], [142.25, 37.5], [142.15, 37.25], [142.25, 37.0], [142.03, 36.47], [141.68, 36.32], [141.53, 35.97], [141.0, 35.75], [140.47, 35.97], [140.32, 36.32], [139.97, 36.47], [139.82, 36.82], [139.5, 36.96], [139.0, 36.75], [138.75, 36.85], [138.5, 36.75], [137.97, 36.97], [137.82, 37.32], [137.47, 37.47], [137.25, 38.0]], [[141.25, 38.35], [141.0, 38.25], [140.75, 38.35], [140.68, 38.32], [140.54, 38.0], [140.68, 37.68], [140.75, 37.65], [140.82, 37.68], [140.97, 38.03], [141.5, 38.25], [141.25, 38.35]]]]}, "2014-03-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[137.25, 38.0], [137.47, 38.53], [138.0, 38.75], [138.3, 38.63], [138.47, 39.03], [139.0, 39.25], [139.25, 39.15], [139.32, 39.18], [139.35, 39.25], [139.25, 39.5], [139.47, 40.03], [139.82, 40.18], [139.97, 40.53], [140.5, 40.75], [141.03, 40.53], [141.18, 40.18], [141.53, 40.03], [141.68, 39.68], [142.03, 39.53], [142.25, 39.0], [142.03, 38.47], [141.5, 38.25], [142.03, 38.03], [142.25, 37.5], [142.15, 37.25], [142.25, 37.0], [142.03, 36.47], [141.68, 36.32], [141.53, 35.97], [141.0, 35.75], [140.47, 35.97], [140.32, 36.32], [139.97, 36.47], [139.82, 36.82], [139.5, 36.96], [139.0, 36.75], [138.75, 36.85], [138.5, 36.75], [137.97, 36.97], [137.82, 37.32], [137.47, 37.47], [137.25, 38.0]], [[141.25, 38.35], [141.0, 38.25], [140.75, 38.35], [140.68, 38.32], [140.54, 38.0], [140.68, 37.68], [140.75, 37.65], [140.82, 37.68], [140.97, 38.03], [141.5, 38.25], [141.25, 38.35]]]]}, "2014-03-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[137.25, 38.0], [137.47, 38.53], [138.0, 38.75], [138.3, 38.63], [138.47, 39.03], [139.0, 39.25], [139.25, 39.15], [139.32, 39.18], [139.35, 39.25], [139.25, 39.5], [139.47, 40.03], [139.82, 40.18], [139.97, 40.53], [140.5, 40.75], [141.03, 40.53], [141.18, 40.18], [141.53, 40.03], [141.68, 39.68], [142.03, 39.53], [142.25, 39.0], [142.03, 38.47], [141.5, 38.25], [142.03, 38.03], [142.25, 37.5], [142.15, 37.25], [142.25, 37.0], [142.03, 36.47], [141.68, 36.32], [141.53, 35.97], [141.0, 35.75], [140.47, 35.97], [140.32, 36.32], [139.97, 36.47], [139.82, 36.82], [139.5, 36.96], [139.0, 36.75], [138.75, 36.85], [138.5, 36.75], [137.97, 36.97], [137.82, 37.32], [137.47, 37.47], [137.25, 38.0]], [[141.25, 38.35], [141.0, 38.25], [140.75, 38.35], [140.68, 38.32], [140.54, 38.0], [140.68, 37.68], [140.75, 37.65], [140.82, 37.68], [140.97, 38.03], [141.5, 38.25], [141.25, 38.35]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.575691295113245}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.787585053183542}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [9.408293400841671, 11.180573704160508, 10.362385632499013]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [12.853989189080892, 14.283793738209454, 13.884541155731824]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.063908796029366, 5.610880436222896, 4.6879659272983645]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.371072218401764, 7.575691295113245, 6.643354464550839]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5847163136094553, 2.1244672127961675, 1.6836678749524048]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9312036499425762, 2.6111216609234775, 2.151426531777275]}}